Removal Efficiency and Distribution Characteristics of PAHs in Coking Plant Contaminated Soils by In Situ Chemical Oxidation Remediation

2013 ◽  
Vol 690-693 ◽  
pp. 1490-1494 ◽  
Author(s):  
Wei Fang Ma ◽  
Hao Guo ◽  
Jian Dong Ye ◽  
Dong Mei Han ◽  
Xiong Wei Ma
Keyword(s):  
Potassium Permanganate ◽  
Removal Efficiency ◽  
Contaminated Soils ◽  
Chemical Oxidation ◽  
Fenton’S Reagent ◽  
Distribution Characteristics ◽  
Oxidation Reactions ◽  
Fenton's Reagent ◽  
Variation Characteristics ◽  
Coking Plant

The aim of this study was to investigate the PAHs removal efficiency in coking plant contaminated soil when disposed by different oxidants with different dosages (hydrogen peroxide, Fenton’s reagent, modified Fenton’s reagent, potassium permanganate, activated sodium persulfate) and the PAHs distribution characteristics in removing parts, soil residue parts, recycling parts and supernate after oxidation reactions. Analyzed the variation characteristics of soil properties (pH and soil temperature) when used different oxidants in oxidation reactions process, screened out the effective and safe remediation oxidants. The research results indicated that the potassium permanganate has the best remediation ability and undemanding reaction conditions than other oxidants. The contaminant which be volatilized into surrounding environment was rarely when disposed by potassium permanganate in remediation process. Consequently, selecting potassium permanganate as remediation oxidant to treat PAHs in coking plant contaminated soils was the best choice.

Degradation of wine distillery wastewaters by the combination of aerobic biological treatment with chemical oxidation by Fenton's reagent

2005 ◽  
Vol 51 (1) ◽  
pp. 167-174 ◽  
Author(s):  
J. Beltran de Heredia ◽  
J. Torregrosa ◽  
J.R. Dominguez ◽  
E. Partido
Keyword(s):  
Chemical Oxygen Demand ◽  
Aromatic Compounds ◽  
Biological Treatment ◽  
Batch Reactor ◽  
Oxygen Demand ◽  
Chemical Oxidation ◽  
Utilization Rate ◽  
Fenton’S Reagent ◽  
Kinetic Rate Constant ◽  
Fenton's Reagent

The degradation of wine distillery wastewaters by aerobic biological treatment has been investigated in a batch reactor. The evolution of the chemical oxygen demand, biomass and total contents of polyphenolic and aromatic compounds was followed through each experiment. According to the Contois model, a kinetic expression for the substrate utilization rate is derived, and its biokinetic constant is evaluated. The final effluents of the aerobic biological experiments were oxidized by Fenton's reagent. The evolution of chemical oxygen demand, hydrogen peroxide concentration and total contents of polyphenolic and aromatic compounds was followed through each experiment. A kinetic model to interpret the experimental data is proposed. The kinetic rate constant of the global reaction is determined.

Effect of Contaminant Hydrophobicity in the Treatment of Contaminated Soils by Catalyzed H2O2 Propagations (Modified Fenton’s Reagent)

2008 ◽  
Vol 11 (2) ◽  
Author(s):  
Richard J. Watts ◽  
Tanya M. Haeri-McCarroll ◽  
Amy L. Teel
Keyword(s):  
Hydrogen Peroxide ◽  
Contaminated Soils ◽  
Fenton’S Reagent ◽  
Fenton's Reagent

AbstractThe effect of contaminant hydrophobicity on hydrogen peroxide dosage requirements in the treatment of contaminated soils using catalyzed H

Phenanthrene and pyrene oxidation in contaminated soils using Fenton's reagent

2009 ◽  
Vol 161 (2-3) ◽  
pp. 967-973 ◽  
Author(s):  
Paula Tereza de Souza e Silva ◽  
Valdinete Lins da Silva ◽  
Benício de Barros Neto ◽  
Marie-Odile Simonnot
Keyword(s):  
Contaminated Soils ◽  
Fenton’S Reagent ◽  
Fenton's Reagent

The removal of acrylonitrile from aqueous solution by Fenton's reagent and membrane filtration

2000 ◽  
Vol 41 (10-11) ◽  
pp. 143-148 ◽  
Author(s):  
C.Y. Chang ◽  
S.H. Chen ◽  
J.S. Chang ◽  
C.C. Wang
Keyword(s):  
Aqueous Solution ◽  
Removal Efficiency ◽  
Membrane Filtration ◽  
Ph Value ◽  
Precipitation Process ◽  
Fenton’S Reagent ◽  
Solution Ph ◽  
Fenton's Reagent ◽  
Toc Removal ◽  
Rate Of Accumulation

The removal of acrylonitrile by Fenton-precipitation and Fenton-microfiltration was investigated in this study. As for Fenton-precipitation, in the range of pH 2 to pH 4, TOC removal efficiency decreased with the increase in pH during the Fenton-precipitation of acrylonitrile. Fenton-microfiltration had a significant improvement on TOC removal at pH 3 and 4 as compared with Fenton-precipitation. The highest removal efficiency of 95% was obtained at pH 3 and the solution pH value had a significant effect on the total permeate quantity and the rate of accumulation. Experimental results led to the conclusion that the oxidation caused by Fenton's reagent was predominant at pH 2. On the contrary, coagulation was most significant at pH 3 and 4. The results indicated the superiority of the Fenton-microfiltration process as compared with Fenton-precipitation process for the removal of acrylonitrile from water.

Mobilization of metals during treatment of contaminated soils by modified Fenton's reagent using different chelating agents

2012 ◽  
Vol 199-200 ◽  
pp. 128-134 ◽  
Author(s):  
Lars R. Bennedsen ◽  
Anne Krischker ◽  
Torben H. Jørgensen ◽  
Erik G. Søgaard
Keyword(s):  
Contaminated Soils ◽  
Chelating Agents ◽  
Fenton’S Reagent ◽  
Fenton's Reagent
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